在写这篇文章之前,我看了其他文章,但还没有找到任何解决方案,我将不胜感激您的帮助。更新UI Android
在应用程序启动器类的onCreate方法中创建一个线程TCPServer并显示一个包含信息的表。 问题是,此信息会有所不同,并且必须在线程检测到TCPServer发送新消息控制时进行更新。
然后我显示代码,如果我表达自己。
//launcher class
public class profesor extends Activity implements OnClickListener {
static TableLayout alumnsTable;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
.
.
.
Thread serverThread = new Thread(null, new TCPServer(), "BackgroundService");
serverThread.start();
.
.
.
//information is added to the table
alumnsTable = (TableLayout)findViewById(R.id.alumnsTable);
List<Alumnos> listaAlumnos = Alumnos.ReadList();
for(Alumnos al:listaAlumnos){
alumnsTable.addView(filaAlumno(al));
}
}
//Eliminates the above information and reloads the table with the new information
public void actualiza(){
alumnsTable.removeAllViews();
setContentView(R.layout.main);
alumnsTable = (TableLayout)findViewById(R.id.alumnsTable);
List<Alumnos> listaAlumnos = Alumnos.ReadList();
for(Alumnos al:listaAlumnos){
alumnsTable.addView(filaAlumno(al));
}
}
}
//TCPServer class
public class TCPServer implements Runnable {
private static Handler handler = new Handler();
public void run() {
ServerSocket serverSocket;
String file;
int filesizeMb = 4;
int filesize = filesizeMb * (1024 * 1024); // filesize temporary hardcoded
int bytesRead;
int current = 0;
try {
serverSocket = new ServerSocket(profesor.COMUNICATION_PORT);
Log.d(profesor.LOG_TAG,"S: Servidor Iniciado.");
while (true) {
final Socket sock = serverSocket.accept();
String ClientAddr=sock.getInetAddress().toString();
ClientAddr = ClientAddr.substring(ClientAddr.indexOf('/') + 1, ClientAddr.length());
final String contacto=DeviceList.getDeviceName(ClientAddr);
Log.d(profesor.LOG_TAG,"S: Conectado con: " + ClientAddr);
// Conection type
DataInputStream dis = new DataInputStream(sock.getInputStream());
final String connectionType =dis.readUTF();
Log.d(profesor.LOG_TAG,"S: Tipo de Conexion " + connectionType);
.
.
.
.
// RECEIVING CONTROL MESSAGE
if (connectionType.contains("CONTROL")) {
String ControlText =dis.readUTF();
String[] Control = ControlText.split(":");
Log.d(profesor.LOG_TAG,"S: Recibido nuevo progreso de prueba. IP: "+Alumnos.getIdAlumno(ClientAddr)+"->"+Integer.parseInt(Control[0])+" ->"+Integer.parseInt(Control[1]));
Alumnos.setProgress(Alumnos.getIdAlumno(ClientAddr), Integer.parseInt(Control[0]), Integer.parseInt(Control[1]));
/****************************************************/
//Here is where I need to call the update method of the
//class teacher to delete the old data and fill the table
//again.
/****************************************************/
}
dis.close();
sock.close();
}
} catch (IOException e) {
Log.d(profesor.LOG_TAG, "IOException"+e);
e.printStackTrace();
}
}
}
任何人都可以给我一些想法?我见过的例子处理程序,但不是在类的声明,而在另一个呼叫。
我希望你明白我的意思,我的英语不是很好。
感谢您的帮助
欢迎使用stackoverflow,请在发帖之前先搜索一下。这已经在许多场合讨论过了,例如http://stackoverflow.com/questions/4369537/update-ui-from-thread – Orlymee